Immediately erase trivially useless copies.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Sat, 19 May 2012 05:25:53 +0000 (05:25 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Sat, 19 May 2012 05:25:53 +0000 (05:25 +0000)
commit06dc72120304bf95831d32a979fb7e69b4697bf8
treea69d6f77177383ac85109c628ff262b929cee790
parent82d77e81457ffeaeb2144ab3a08cb3f3e7466eaa
Immediately erase trivially useless copies.

There is no need for these instructions to stick around since they are
known to be not dead.

llvm-svn: 157102
llvm/lib/CodeGen/RegisterCoalescer.cpp